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3 years ago

Find all values of x

Mathematics

1 answer:

EleoNora [17]3 years ago

5 0

Answer:

x=1,3

Step-by-step explanation:

F(x)= y so let find the x-values when y=-4 that is in the function. Only ones the coincide are 1 and 3

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What would the radius of a circle be with a diameter of 24?

Montano1993 [528]

Answer:

r = 12

Step-by-step explanation:

using the formula

d = 2 r

solving for r

r = d/2= 24/2=12

8 0

3 years ago

Read 2 more answers

Write 0.8 as a fraction.

Scrat [10]

0.8=0.8/1=8/10=4/5
not one of them
but,

2/9=0.2222222222
4/9=0.444444444444
7/9=0.7777777777
8/9=0.88888888888

I think you meant 0.8 repeating so

answer is D

5 0

3 years ago

In two years, Linda will be half as old as her mother. Her mother is 38 years old now. What is Linda's current age?

yuradex [85]

$L+2=\dfrac{m+2}{2}\\
m=38\\\\
L+2=\dfrac{38+2}{2}\\
L+2=\dfrac{40}{2}\\L+2=20\\L=18$

18

7 0

3 years ago

an item is purchased for a wholesale price of $48 and will be sold at a 55 percent markup. which expression should be used to fi

Reil [10]

48 times 1.55 equals 74.4.

7 0

3 years ago

Read 2 more answers

If you are reading this please help!!!!

Soloha48 [4]

Given:

$1. -3 x^{2}\left(4 x^{3}-7\right)\\$2. $(6 x-5)(2 x+3)$\\3. $(3 x-1)\left(x^{2}+5 x-2\right)$$

To find:

The product of the polynomials.

Solution:

1. $-3 x^{2}\left(4 x^{3}-7\right)$ $=-3 x^{2}(4 x^{3}) -3 x^{2}(-7)$

Multiply the numerical coefficient and add the powers of x.

$=-12 x^{5}+21 x^{2}$

2. $(6 x-5)(2 x+3)=6 x(2 x+3)-5(2x+3)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=12 x^2+18x-10 x-15$

$=12 x^2+8x-15$

3. $(3 x-1)\left(x^{2}+5 x-2\right)=3 x(x^{2}+5 x-2)-1(x^{2}+5 x-2)$

Multiply each term of first polynomial with each term of 2nd polynomial.

Multiply the numerical coefficient and add the powers of x.

$=3x^{3}+15 x^2-6x-x^{2}-5 x+2$

Add or subtract like terms together.

$=3x^{3}+14 x^2-11x+2$

The answer for multiplying polynomials:

$1. -12 x^{5}+21 x^{2}$

$2. \ 12 x^2+8x-15$

$3. \ 3x^{3}+14 x^2-11x+2$

3 0

4 years ago